Liquid door-check and spring.



A. E. W. WYETH I A. 8.1. SAUERBRUNN.

LIQUID DOOR CHECK AND SPRING.

APPLICATION FILED MAR.28.I901.

Patented Mar. 21, 1916.

2 SHEETS-SHEET l.

SECT/ON H.

WITNESSES:

A. E. W. WYETH (IAA. B. J. SAUERBRUNN.

LIQUID DOOR CHECK AND SPRING. APPLICATION FILED MAR. 28, Iso?.

1,176,014. Patented Mar. 21,1916.

2 SHEETS-SHEET 2- ATTORN EY ALBERTYE. W. WYETH AND .ARTHUR B. J. SAUERBRUNN, OF NEW YORK, N. Y.

IQUID DOOR-CHECK AND SPRING.

V Specification of Letters Patent.

Patented Mar. 21,1916.

Application led March 28, 1907. Serial No. 365,060.

To all whom 'it may concern:

Be it known that we, ALBERT E. W'.

WYETH and ARTHUR i3. J. SAUERBRUNN, citizens of the United States, and residents of` Brooklyn, cityl of New York, in the county of Kings and State of New York, have invented a certain new and useful Liquid Door- Check and Spring, of which the .following is a speciication.

Our invention relates to the checking of hinged doors; the check to be applied in conjunction with a spring hinge, single or double acting or as a checking hinge only, in the case of doors already provided with spring closers.

The invention is to provide a combination of a spring hinge and a check which can be applied to a door and a door jamb in the same manner as any ordinary loose pin hinge, also, in which the checking device can be removed for repairs, the hinge reassembled and used independently.

The intention is also to provide in a door hinge, the leaves or pintle of which are instruments for transmitting force, a detachable pintle designed to have both ends engaged fast the idea being to prevent any undue torsion strain of the pintle or warping of hinge leaves.

V'Ve attain these objects by the combination of parts, as illustrated in the accompanying drawings, which show the check in conjunction with a spring hinge, in which,-

Figure l. is a vertical section of the entire apparatus, on the line A.-A., Figs. B-15; Fig. 2. is a section of the piston on the line B.-B., Figs. 3 4; Fig. 3. is .a horizontal section of the liquid chamber, hinge knuckle and leaves, showing by-pass valve and regulating screw, on the line C.-C., Figs. 1-2; Fig. 4. is a horizontal section, of liquid chamber and hinge knuckle, showing ball-valves on the lines D.--D., Figs. lmQ; Fig. 5. is a horizontal section of spring tension cap and hinge leaves on the line E E., Fig. 1.; Fig. 6, is a perspective view of a single acting hinge applied; Fig. 7. is a plan view showing the application of a double acting hinge.

Similar reference characters refer to like parts throughout the several views.

Referring to one form of our invention as disclosed by Fig. 1, the lower end of the spring is secured in disk 18 seated in the knuckle or barrel 15 integral with one of the hinge leaves and connected thereto by l described.

the pins 19 and constitutes therein a iixed spring holder, while the upper end of the spring is secured to the rotary cap 2O constituting not only a cover for the barrel l5 but a movable spring holder for the purpose of regulating the tension of the spring. Furthermore the pintle sockets to which the hinge leaf Q2 is secured constitute the other knuckles of the hinge, the barrel 15 being located between said sockets and adapted to house the spring and checking mechanism.

As disclosed, the numeral 3 indicates a roi tary piston having a hub fast at one end on the rotary hinge pintle 6 said hub being journaled on its upper end in the detachable cap 2 while the lower end is journaled in the base of the checking cylinder. The checking cylinder is adapted to contain a suitable fluid.. Located within the checking cylinder and secured thereto is a partition 4 having an arm 4a extending `over a portion of the inside of the cylinder and having therein two ball valves and a by-pass valve, which is provided with a screw to regulate the flow of the liquid. The regulating screw isprovided with a suitable stuffing box to prevent the leakage of liquid at this point. The cap 2 and the base of the checking cylinder are provided with suitable stuihng boxes to prevent the leakage of liquid around the projections of the hub of piston 3. The checking cylinder is inserted within the barrel of hinge leaf 15, the regulating screw of bypass valve being first tightly closed. The spindle end of the regulating screw being made of such length that the head, when screw is closed, will come just inside the periphery of the checking cylinder. The checking cylinder is then detachably. secured to the barrel of hinge leaf 15 by means of screws 11. Screw cap 10 is constructed to form stuffing box 13.

The movement of the piston 3 is effected by that of thehinge leaf 22 through the medium of the hinge pintle 6 both ends of which are designed to engage the sockets 22 of hinge leaf 22. The piston is just long enough to reach the inner face of the arm 4 of the partition 4.

The operation of this mechanismv is thus Having the leaf 15 of the hinge fastened to a door jamb and the leaf Q2 fastened to a door, the opening of the door causes the piston to move-through an operative connection before described-away from the partition 4, the ball valves allow-v lll) ing the liquid to freely pass.l Simultaneously the spring is brought under tension through the medium of pin 21. The spring closes the door, reversing the motion of the piston. When the arm 4** of the partition 4 is reached the piston compresses the liquid, closing the ball valves and checking the action of the spring. The escape of the fluid is controlled by the by-pass valve and regulating screw.

We therefore claim, knowing that prior to ouil invention liquidA door checks have been made operating in conjunction with a spring and being embodied Within a hinge,-

l. The combination With a spring hinge including a pintle and a spring barrel, and a. spring mounted in said barrel, of a liquid door check comprising in its construction a vertically disposed cylinder seated in said hinge barrel and detachably connected thereto, a rotary piston having a perforated hub fast on the hinge pintle and a valved abutment secured in said cylinder, said cylinder constructed to hold a checking fluid.

2. ln a door hinge a continuous pintle being designed to slip through and engage the sockets of one leaf also the hub of the piston of a checking device embodied within the barrel of the'other leaf and acting as an operative connection between the one leaf and the piston of the checking device, substantially4 as shown. Signed at New York city, in the county of New York and State of New York, this 26th day of March, A. D. 1907.

ALBERT E. W. WYETH.

ARTHUR B. J. SAUERBRUNN. Witnesses:

TOM. H. STEVENS,

I. E. A. ROSE. .l 

